Influence of arbuscular mycorrhizal fungi on the vegetative development of citrus rootstocks1

Back, Marina Martinello; Altmann, Taís; Souza, Paulo Vítor Dutra de

doi:10.1590/1983-40632016v4642180

Cited by 11 publications

(6 citation statements)

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“…Nunes et al (2011) observed in their study that the Okinawa peach rootstock inoculated with AMF Glomus etunicatum (Becker & Gerd) kept in a protected environment showed larger diameter, height, leaf area, fresh and dry mass of the root and shoot than non-inoculated plants. In addition, Back et al (2016) evaluated the response of the citrange 'Fepagro C37 Reck' to inoculation with Scutellospora heterogama (TH Nicolson & Gerd. ), Gigaspora margarita (Becker & Hall), Glomus etunicatum (Becker & Gerd) and Acaulospora sp.…”

Section: Resultsmentioning

confidence: 99%

Growth and physiology of the citrange ‘Fepagro C37 Reck’ rootstock innoculated with arbuscular mycorrhizal fungi

2018

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The use of arbuscular mycorrhizal fungi (AMF) in the production of rootstocks is a strategy to promote faster plant growth. However, this response depends on the symbiont species. The objective of this study was to evaluate the influence of different species of arbuscular mycorrhizal fungus (AMF) on the development and physiology of citrange 'Fepagro C37 Reck' rootstock. Four species of AMF were used in the experiment: Scutellospora heterogama, Gigaspora margarita, Glomus etunicatum, and Acaulospora sp., and a control treatment. The experiment was arranged in a randomized blocks design, with 5 treatments, 3 replicates, and 10 plants per plot. Every 15 days, height (cm) and stem diameter (mm) of plants were measured in the nursery. At 330 days, the number of leaves, leaf area (cm²), fresh and dry mass of roots and shoot (g/plant), root and shoot reserve content, and AMF colonization were evaluated. The AMF inoculation promoted an accelerated vegetative growth, resulting in greater height and diameter. The fungi also promoted greater absorption of most of the nutrients and increase in all other parameters evaluated. However, no effect was found on the reserve content of the rootstock. Roots were colonized with moderate presence of arbuscules and low presence of vesicles. AMF, regardless of species, influence the development and physiology of the citrange 'Fepagro C37 Reck' rootstock.

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Section: Resultsmentioning

confidence: 99%

Growth and physiology of the citrange ‘Fepagro C37 Reck’ rootstock innoculated with arbuscular mycorrhizal fungi

2018

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“…Inoculation with G. etunicatum favored the growth of rootstocks, considering the height and stem diameter variables, unlike G. clarum, which did not promote the growth of plants in any of the variables analyzed. Back et al (2016), working with 'Kumquateiro' [Fortunella hindsii (L.) Swingle] and 'Fepagro C37 Reck' citrange [P. trifoliate (L.) Raf. C. sinensis (L.) Osbeck.]…”

Section: Resultsmentioning

confidence: 99%

Mycorrhizal dependence of citrus rootstock

Miranda

Mello

Kupper³

2018

Rev. Bras. Frutic.

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Plant growth promoting microorganisms, such as mycorrhizal fungi, have been widely used in agriculture because they help plants in the absorption of nutrients and water, influencing their growth. The objective of this work was to verify the effect of the mycorrhizal association of Glomus clarum and Glomus etunicatum on the initial growth of the rootstocks Rangpur lime, Swingle citrumelo and Sunki mandarin. The experimental design was completely randomized with a 3 x 4 factorial arrangement, with five replications, corresponding to three rootstocks, four managements: mineral fertilization, inoculation with G. clarum (IGC), inoculation with G. etunicatum (IGE) and Control. The seedlings were produced in greenhouse, using as substrate the vermicompost earthworm, distributed in polyethylene bags, depositing three seeds of each rootstock / bag. The inoculation with mycorrhizal fungi was carried out at the time of sowing (45 spores of each species / bag). The mineral fertilization was divided into two phases: phosphorus application before sowing (40g of single superphosphate / bag); nitrogen application (1.7 g dissolved in 40 ml of water), divided in eight applications of 5 ml of the solution, via irrigation water, manually and weekly; and micronutrients (B, Cu, Fe, Mn and Zn), sprayed manually every two weeks. The following parameters were evaluated: height, stem diameter, number of leaves, shoot dry mass, colonization and mycorrhizal dependence. There was a significant interaction between the rootstocks and treatments applied in this study for most of the evaluated variables. Rangpur lime and Swingle citrumelo obtained higher height and the management that conferred higher height to the rootstocks was the mineral fertilization and IGE. The largest diameter of the stem was reached by Swingle citrumelo and the management that provided the largest diameter was the inoculation with G. etunicatum. Rangpur lime presented moderate mycorrhizal dependence for G. clarum and marginal for G. etunicatum. Mycorrhizal colonization did not show a significant interaction between rootstocks and the management with inoculation. The mycorrhizal association of G. clarum and G. etunicatum was not presented as the best management for the growth of Rangpur lime, Swingle citrumelo and Sunki mandarin, when compared to the mineral fertilization. However, the inoculation of mycorrhizal fungi provided a positive effect on the uptake of some nutrients by the rootstocks, especially K, Mg, N and P.

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“…In addition, some studies show that indigenous AMF give the maximum effect [51]. Therefore, in order to ensure the success of reclamation, a series of factors need to be considered in the process of mycorrhizal microbial reclamation, such as the production and quality control of microbial agents in large-scale microbial reclamation, species compatibility with the target environment (e.g., edaphic and climatic conditions in the reclamation area), the degree of spatial competition with other soil organisms in the target niche, host plant species and cultivars, and the timing of inoculation [52,53]. Furthermore, small-scale field experiments are needed before large-scale mycorrhizal reclamation is attempted.…”

Section: Discussionmentioning

confidence: 99%

Arbuscular Mycorrhizal Fungi Enhance Sea Buckthorn Growth in Coal Mining Subsidence Areas in Northwest China

Bi¹,

Shen²,

Zhang³

2020

J. Microbiol. Biotechnol.

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Land subsidence induced by underground coal mining leads to severe ecological and environmental problems. Arbuscular mycorrhizal fungi (AMF) have the potential to improve plant growth and soil properties. We aimed to assess the effects of AMF on the growth and soil properties of sea buckthorn under field conditions at different reclamation times. Inoculation with AMF significantly promoted the survival rate of sea buckthorn over a 50-month period, while also increasing plant height after 14, 26, and 50 months. Crown width after 14 months and ground diameter after 50 months of inoculation treatment were significantly higher than in the uninoculated treatment. AMF inoculation significantly improved plant mycorrhizal colonization rate and promoted an increase in mycelial density in the rhizosphere soil. The pH and electrical conductivity of rhizosphere soil also increased after inoculation. Moreover, after 26 and 50 months the soil organic matter in the inoculation treatment was significantly higher than in the control. The number of inoculated soil rhizosphere microorganisms, as well as acid phosphatase activity, also increased. AMF inoculation may play an active role in promoting plant growth and improving soil quality in the long term and is conducive to the rapid ecological restoration of damaged mining areas.

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Influence of arbuscular mycorrhizal fungi on the vegetative development of citrus rootstocks1

Cited by 11 publications

References 10 publications

Growth and physiology of the citrange ‘Fepagro C37 Reck’ rootstock innoculated with arbuscular mycorrhizal fungi

Growth and physiology of the citrange ‘Fepagro C37 Reck’ rootstock innoculated with arbuscular mycorrhizal fungi

Mycorrhizal dependence of citrus rootstock

Arbuscular Mycorrhizal Fungi Enhance Sea Buckthorn Growth in Coal Mining Subsidence Areas in Northwest China

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